Description
In the Linux kernel, the following vulnerability has been resolved:
KEYS: prevent NULL pointer dereference in find_asymmetric_key()
In find_asymmetric_key(), if all NULLs are passed in the id_{0,1,2} arguments, the kernel will first emit WARN but then have an oops because id_2 gets dereferenced anyway.
Add the missing id_2 check and move WARN_ON() to the final else branch to avoid duplicate NULL checks.
Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < 3322fa8f2aa40b0b3651034cd541647a600cc6c0; >= 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < a3765b497a4f5224cb2f7a6a2d3357d3066214ee; >= 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < 13b5b401ead95b5d8266f64904086c55b6024900; >= 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < 0d3b0706ada15c333e6f9faf19590ff715e45d1e; >= 7d30198ee24f2ddcc4fefcd38a9b76bd8ab31360, < 70fd1966c93bf3bfe3fe6d753eb3d83a76597eef |
| Linux | Linux | 5.17 |
References
- https://git.kernel.org/stable/c/0d3b0706ada15c333e6f9faf19590ff715e45d1ePatch
- https://git.kernel.org/stable/c/13b5b401ead95b5d8266f64904086c55b6024900Patch
- https://git.kernel.org/stable/c/3322fa8f2aa40b0b3651034cd541647a600cc6c0Patch
- https://git.kernel.org/stable/c/70fd1966c93bf3bfe3fe6d753eb3d83a76597eefPatch
- https://git.kernel.org/stable/c/a3765b497a4f5224cb2f7a6a2d3357d3066214eePatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Timeline
- Published
- Oct 21, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Modified